how to mine reactive sulphide ore

how to mine reactive sulphide ore

Sulfide Ore | Article about Sulfide Ore by The Free Dictionary

Sulfide Ore any of several natural mineral formations consisting of metal sulfides. Metal selenides, tellurides, arsenides, and antimonides are also classified among the sulfide ores. Sulfide ores are an important source for the production of Ni, Co, Cu, Zn, Pb, Mo, Bi, Sb, and Hg. They contain not only sulfides but also other minerals, including ...

Subaqueous Disposal of Tailings in a Waste Facility ...

Operations at the mine lasted from 1976 to 1988, during which time approximately 8 million tons of metal sulphide ore was mined from Caledonian, strata bound volcanogenic host rock and concentrated on-site (Zachrisson 1971, Broman & Göransson 1994).

Sulphide Gold Ore Treatment by Leaching and Flotation Process

Sulphide Gold Ore Treatment by Leaching and Flotation Process Previous Next Problem with gold recovery from sulphide ore: How may a mill get the maximum recovery of gold from a sulphide ore , at the least capital cost and at the same time obtain the highest net return.

Use of reactive MgO-activated slag in high sulphide ...

with sulphide content due to the formation of expansive phases such as gypsum. This paper investigates the potential of using commercial reactive MgO-activated ground granulated blast furnace slag (MgO-GGBS) in cemented backfill from high sulphide content lead-zinc mine tailings to prevent long-term strength loss. The

Gold extraction - Wikipedia

Gold extraction refers to the processes required to extract gold from its ores.This may require a combination of comminution, mineral processing, hydrometallurgical, and pyrometallurgical processes to be performed on the ore.. Gold mining from alluvium ores was once achieved by techniques associated with placer mining such as simple gold panning and sluicing, resulting in direct recovery of ...

Gold cyanidation - Wikipedia

Gold cyanidation (also known as the cyanide process or the MacArthur-Forrest process) is a hydrometallurgical technique for extracting gold from low-grade ore by converting the gold to a water-soluble coordination complex. It is the most commonly used leaching process for gold extraction.

Sulfide - Wikipedia

Sulfide (British English also sulphide) is an inorganic anion of sulfur with the chemical formula S 2− or a compound containing one or more S 2− ions. Solutions of sulfide salts are corrosive. Sulfide also refers to chemical compounds large families of inorganic and organic compounds, e.g. …

A Model for the Chemical Kinetics of In-Situ Leaching of a ...

A computer simulation is being developed for in-situ leaching of unbroken, Zn-Pb-Ag sulphide ore. Ferric chloride is the selected reagent. Experimental work showed that a diffusion control model of the kinetic aspects was better than a surface chemical reaction control model. Entrapped reactive grains were accessible to reagent in the samples tested.

Sulphide Minerals: Surface Oxidation and Selectivity in ...

In the context of valuable sulphide mineral recovery from sulphide ore, the complex chemistry of the sulphide surface reactions in a pulp, coupled with surface oxidation and instability of the adsorbed species, makes the adsorption processes and selective flotation of a given sulphide mineral from other sulphides have always been problematic ...

(PDF) Biogenic sulphide for cyanide recycle and copper ...

Gold–copper ore processing BioSulphideÒ technology involving biogenic sulphide gen- eration and its techno-economically effective use in the This topic has been thoroughly reviewed, most recently treatment of copper cyanide solutions for copper recovery by Jay (2001) and Sceresini (2005); hence the focus here is and cyanide regeneration.

A study of self-heating characteristics of a pyrrhotite ...

Self-heating characteristics of a complex nickel–copper sulphide ore from underground operations, which was stockpiled at the surface, have been investigated. The sulphide ore stockpile consisted of pentlandite, chalcopyrite and a pyrrhotite gangue in a non-sulphide matrix. The ratio of Pn/Cp was about 1, while that of Po/Pn was about 5.1.

Major Mines & Projects | Stratoni Mine

The massive sulphide mineralisation has a relatively simple mineralogy, and the most abundant ore minerals are pyrite, sphalerite, galena, arsenopyrite and chalcopyrite. The dominant exploited minerals historically have been sphalerite, pyrite and galena; the ore is often abbreviated to BPG from the old notation blende, pitch, galena.

Metal Extraction Flashcards | Quizlet

Start studying Metal Extraction. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Copper Ore Types: Sulfides vs. Oxides | INN

Both ore types can be economically mined, though they are processed in different ways. Copper sulfide ores are typically the most profitable types of copper ores to mine. That is because they have ...

Custom CRMs - ORE As

Custom CRMs Matrix-Matched (Custom) CRMs. The core competency of Ore Research & Exploration is the preparation and certification of Custom CRMs from source materials supplied by clients. Custom CRMs are also commonly referred to as matrix-matched CRMs, mine-matched CRMs or site-specific CRMs. They are used for:

Mend | Field Sampling Manual for Reactive Sulphide Tailings

4.1.1 - Field Sampling Manual for Reactive Sulphide Tailings - November 01, 1989 A fundamental requirement for the monitoring and study of natural environments is the ability to collect high-quality samples of solid, liquid, and gaseous phases.

(PDF) A Review on Pyrrhotite Oxidation - ResearchGate

The effect of temperature on the oxidation rates of sulphides in tailings has been discussed in many studies [32]. A significant increase in the oxidation rate of pyrite and pyrrhotite with ...

Minerals | Free Full-Text | Evolution of Acid Mine ...

Mine tailings are among the largest mining wastes on Earth and can reach surface areas of up to 52 km 2 [] and be several hundred meters high.As this waste type results mainly from the flotation process of sulphide mineral ores they are very likely to produce acid mine drainage (AMD), the main environmental problem of contemporary mining activity.

Weld Range Iron Ore Project - EPA WA

The Weld Range Iron Ore Project (the Project) is a direct shipping iron ore project with high grade outcrops over a 60 km strike length. SMC is targeting to export 15 million tonnes per annum (Mtpa) of iron ore over a 15 year period, however, this Management Plan covers the …

Chapter 2 - GARDGuide

The type and distribution of sulphide minerals can vary widely according to the type of ore deposit, nature of the mine waste, and mine stage. Certain types of ore deposits can be devoid of sulphides (e.g., oxide-facies banded iron formation [BIF] deposits) while others contain very substantial amounts of sulphide (e.g., VMS deposits).

Permeable reactive barrier – Mine Closure

Permeable reactive barrier (PRB) is a versatile technology to treat polluted water streams, e.g. acid mine drainage (AMD), passively and in situ. Description of the technology The fundamental idea of PRB treatment is that polluted water is flowing gravitationally through water permeable zone which contains reactive material.

Cyanidation of a pyrrhotite-bearing gold ore

The Musselwhite Mine plant, originally designed at 3,300tpd, processes a free milling gold ore containing pyrrhotite as the primary sulphide, at a present throughput of 3,650t/d. The ore is crushed in two stages, using a 1m x 1.4m jaw crusher and 2.1m super heavy-duty cone crusher. The -1.9cm fine ore is

Carbonate-hosted lead-zinc ore deposits - Wikipedia

Carbonate-hosted lead-zinc ore deposits are important and highly valuable concentrations of lead and zinc sulfide ores hosted within carbonate (limestone, marl, dolomite) formations and which share a common genetic origin.. These ore bodies range from 0.5 million tonnes of contained ore, to 20 million tonnes or more, and have a grade of between 4% combined lead and zinc to over 14% combined ...

massive sulphide ore beneficiation - Mine Equipments

From Discovery to Mine - Endomines AB Below is a description of the process, from ore discovery to completed raw material ... metallurgically, and considering the beneficiation processing techniques to ... proper to the ore type in question e.g. massive sulphide ore or ilmenite ore can ...

sulphide dust explosion - Mine Safety and Health Quizzes ...

Safety Management of UG Combustible Sulphide Dust The Department of Minerals and Energy Safety Bulletin No. 1 “Sulphide Dust Explosion Hazard” February 1990, highlighted the concern for this problem. The hazardous nature of an uncontrolled Sulphide Dust Ignition (SDI), most likely an explosion, has been the subject

What is Sulfide Mining? | Mining Action Group

Why Is Sulfide Mining Dangerous? If sulfide ore or sulfide tailings are exposed to water and air during mining, a chemical reaction creates sulfuric acid – basically battery acid. There has never been a sulfide mine that has not polluted nearby water resources. Pollution from sulfide mining is very expensive to fix, and a burden for taxpayers.

Mend | Manual of Methods Used in the Revegetation of ...

2.24.1 - Manual of Methods Used in the Revegetation of Reactive Sulphide Tailings Basins - August 01, 1989 The Land Directorate of Environment Canada has estimated that by the year 2000 A.D. over 172,000 hectares of land would be disturbed by the mining industry.

Chapter 2

2.4.4 The Sulphide Oxidation Process 2.4.5 Reaction Products from Sulphide Oxidation ... Specific references to reactive sulphides and their degradation to acid and salts date from as early as the Roman era, and ... More detail on the genesis of coal mine drainage (CMD) is presented here: Introduction to Coal Mine Drainage.

Briefing Note Reactive Ground Vers 6 - Orica Mining Services

Reactive ground is a term used in the mining industry to describe ground in which the reaction between sulphides (especially iron and copper sulphides) contained in rock and the ammonium nitrate contained in explosives may take place. The reaction of ammonium nitrate with sulphide-containing minerals is an auto-catalysed process which can, after

2014 OPEN ACCESS minerals

Mine tailings are among the largest mining wastes on Earth and can reach surface areas of up to 52 km2 [1] and be several hundred meters high. As this waste type results mainly from the flotation process of sulphide mineral ores they are very likely to produce acid mine drainage (AMD), the main environmental problem of contemporary mining activity.

Acid mine drainage from sulphide ore deposits | SpringerLink

Acid mine drainage is generally regarded as the principal environmental problem caused by the mining of sulphide ore deposits. Acid mine drainage results from the reaction of pyritic material with...

how to mine zinc ore -

Silver Lead Zinc Ore Processing Method using Flotation. Mar 19, 2017 The process consists of selective flotation to produce a mixed silver, lead concentrate for maximum smelter return and a separate zinc concentrate. Overgrinding of The mine ore is fed from the coarse ore bin to a 9″x 16″ Forced Feed Jaw Crusher by means of a Apron Ore Feeder.

Polymetallic massive sulphide deposits | MIDAS

Polymetallic massive sulphide deposits are most commonly formed along tectonic plate boundaries and volcanic provinces in water depths from <500 to 5000m. Seawater seeps into the volcanic rock making up the seafloor through cracks and fissures.